A very interesting Gadgetology study by Retrevo. Especially the confirmation that people under 35 use mobile phone as the preferred device for social media services instead of a desktop or laptop computer.
Under age 35: 46% mobile phone vs only 56% desktop/laptop computer.Over age 35: 19% mobile phone vs 81% desktop/laptop computer. http://www.retrevo.com/content/blog/facebooktwitternewcigarette?cmpid=Email